<template>
  <view>
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <!-- 循环渲染轮播图的 item 项 -->
      <swiper-item v-for="(item, i) in swiperList" :key="i">
        <navigator class="swiper-item" :url="'/subpackages/goods_detail/goods_detail?goods_id=' + item.goods_id">
          <!-- 动态绑定图片的 src 属性 -->
          <image :src="item.image_src"></image>
        </navigator>
      </swiper-item>
    </swiper>
	<!-- 分类导航区域 -->
	<view class="nav-list">
	   <view class="nav-item" v-for="(item, i) in navList" :key="i"
	    @click="navClickHandler(item)">
	     <image :src="item.image_src" class="nav-img"></image>
	   </view>
	</view>
	<!-- 楼层区域 -->
	<view class="floor-list">
	  <!-- 楼层 item 项 -->
	  <view class="floor-item" v-for="(item, i) in floorList" :key="i">
	    <!-- 楼层标题 -->
	    <image :src="item.floor_title.image_src" class="floor-title"></image>
		<!-- 楼层图片区域 -->
		<view class="floor-img-box">
		  <!-- 左侧大图片的盒子 -->
		  <navigator class="left-img-box" :url="item.product_list[0].url">
		    <image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}" mode="widthFix"></image>
		  </navigator>
		  <!-- 右侧 4 个小图片的盒子 -->
		  <view class="right-img-box">
		    <navigator class="right-img-item" v-for="(item2, i2) in item.product_list" :key="i2" v-if="i2 !== 0" :url="item2.url">
		      <image :src="item2.image_src" mode="widthFix" :style="{width: item2.image_width + 'rpx'}"></image>
		    </navigator>
		  </view>
		</view>
	  </view>
	</view>
  </view>
</template>
<script>
	export default {
		data() {
			return {
				//这是轮播图的数据列表
				swiperList:[],
				//分类导航的数据列表
				navList:[],
				//楼层的数据
				floorList:[]
			};
		},
		onLoad() {
			//调用方法，获取轮播图的数据
			this.getSwiperList()
			this.getNavList()
			this.getFloorList()
		},
		methods:{
			async getSwiperList(){
				const { data: res } = await uni.$http.get('/api/public/v1/home/swiperdata')
				//请求失败
				if(res.meta.status !== 200) return uni.$showMsg()
				this.swiperList = res.message
			
			},
			async getNavList(){
				const { data: res } = await uni.$http.get('/api/public/v1/home/catitems')
				if(res.meta.status !== 200) return uni.$showMsg()
				this.navList = res.message
			},
			// nav-item 项被点击时候的事件处理函数
			navClickHandler(item) {
			  // 判断点击的是哪个 nav
			  if (item.name === '分类') {
			    uni.switchTab({
			      url: '/pages/cate/cate'
			    })
			  }
			},
		// 3. 定义获取楼层列表数据的方法
			async getFloorList() {
				const { data: res } = await uni.$http.get('/api/public/v1/home/floordata')
				if (res.meta.status !== 200) return uni.$showMsg()

				  // 对数据进行处理
				  res.message.forEach(floor => {
				    floor.product_list.forEach(prod => {
				      prod.url = '/subpackages/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
				    })
				  })
			    this.floorList = res.message
			    }
		}
	}
</script>

<style lang="scss">
swiper{
	height: 300rpx;
	.swiper-item,
	image{
		width: 100%;
		height: 100%;
	}
}
.nav-list {
  display: flex;
  justify-content: space-around;
  margin: 15px 0;

  .nav-img {
    width: 128rpx;
    height: 140rpx;
  }
}
.floor-title {
  height: 60rpx;
  width: 100%;
  display: flex;
}
.right-img-box {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}

.floor-img-box {
  display: flex;
  padding-left: 10rpx;
}
</style>
